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Growing Radish

Jan F M A M J J A S O N Dec
P P P           P P    

(Best months for growing Radish in USA - Zone 7a regions)

P = Sow seed

  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 8°C and 30°C. (Show °F/in)
  • Space plants: 3 - 5 cm apart
  • Harvest in 5-7 weeks.
  • Compatible with (can grow beside): Chervil, cress,lettuce, leeks, spinach, strawberries, tomatoes
  • Avoid growing close to: Hyssop, gherkins
  • Cherry radish
  • French Breakfast radishes

Small, spicy tasting root vegetable usually round but some longer varieties . Available in a range of colours between red and white.

Very easy to grow. Good for a child's first garden as seedlings appear in two or three days. Sow between other vegetables as they will mark the rows until the slower germinating plants appear.

Culinary hints - cooking and eating Radish

Wash well and remove leaves and roots.
Use raw in salads or on their own with bread and butter.

Your comments and tips

08 Mar 20, Elize (South Africa - Semi-arid climate)
How much water do radishes need?
08 Mar 20, ML (South Africa - Summer rainfall climate)
A little light watering each day, try and keep the soil moist. During germination and the first few days even twice a day. They have a shallow root system, light watering often.
05 Mar 20, Shouyu Du (USA - Zone 9b climate)
Why do my cherry belle still has a thin bulb growing out of the soil when I have already planted them for 3 weeks
08 Mar 20, Another gardener (Australia - sub-tropical climate)
It says 5-7 weeks to grow, maybe they need a little longer to produce round radishes. Could also be the long thin radishes, mix up of seeds. I have grown radishes for 40 + years, but only recently found better to grow into the winter. I'm about to try something a bit different. I'm going to dig the soil up a bit then pat it down a little then plant the seeds and cover with a thin layer of soil. Sometimes in loose soil the radishes grows and then heavy rain packs the soil a bit and the radishes are sticking out of the ground and they form a long small sausage shape.
22 Dec 19, Madison (Australia - temperate climate)
This is my first time growing radishes, and I found that most of the leaves had been eaten through or had tough brown/yellow streaks. I believe it may be some sort of disease or they have been attacked by pests.
27 Dec 19, Another gardener (Australia - sub-tropical climate)
when it is wet and rainy the bugs and insect breed more, or that is their breeding time. I'm sub tropical and I try to grow radishes March to Oct. I'm finding I grow the best radishes late autumn winter. And try and have the soil a bit firm when planting radishes. I find if the radish has germinated and is growing and the soil is then compacted a bit by rain/watering you end up with radishes that look like a number 8 instead of a nice circle round.
11 Oct 19, Danny (New Zealand - temperate climate)
why are my radish going to seed? Have very big top and no radish.. have done for about 3 years .
14 Oct 19, anon (New Zealand - sub-tropical climate)
If they have very big leafy tops you are over fertilising BIG TIME. Plant radish after a leafy crop so that a lot of the N has been used. My experience is to grow radish into winter -sub tropical.
22 Sep 19, Gerty (USA - Zone 7b climate)
My radishes came out too small or not developed a full bulb/root at all. I used a peat based potting soil and compost + vermiculite also amended with fish/kelp emulsion. I am growing them in 6 inch deep flats with proper drainage holes. The variety is Cherry Belles, Rover, French Breakfast. Planted them in late summer for fall.
11 Jan 19, paul stanley wood (Australia - sub-tropical climate)
why not try the white long asian type i find them better they last longer in the fridge crisper
Showing 1 - 10 of 106 comments

Hi!! Would anyone be able to give some advice as to why my radishes when I picked them today, found that the base of them were split and not very healthy looking, rough skin? Could there be an issue in the soil? Thanks in advance.

- Mandy McGuane

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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